#pragma once
enum ERR
{
    SOCKET_ERR,
    BIND_ERR,
    LISTEN_ERR,
    ACCEPT_ERR,
    CONNECT_ERR,
    EP_CREATE_ERR,
    EP_CTL_ERR,
    EP_CTL_WAIT,
    FCNTL_ERR,
    SETSID_ERR
};